Piston ring



Aug. 1?, 1926, Lwwm D. M. SOLENBERGER PISTON'RING Filed Deo. 3l, 1925 5\ f6 (l/ g El@ f/j fw f 'U f WK /U/f/ fi i: i 1

eateries Aaa n', ieee DEN M. SOLENBERGER, 0F CLEVIILAIATTLl OHI, ASSIGNOR T0 YSILVLPLEX PISTON RNG COMPANY, OF CLEVELAND, OHIO, A COBPRTION OF ORIG/'f PISTON 31N Gl.

Application filed December 31, 1925. Serial No. 78,675.

The invention relates to sealing rings designed. for both axial and radial flexibility and consists in the novel construction as hereinafter set forth. l

ln the drawings:

Figure Vl is a diagram indicating a side elevation ot' the ring as developed in a plane.

Figure 2 is a similar view of a slightly modilied construction.

Figure 3 is a perspective View of a portion oli the ring.

My improved ring is formed from cast iron or other suitable material which is originally machined or ground to an axial Width in excess of that of the ring groove for which it is designed. Thering A is then bored radially at intervalsA4 as indicated at B, B after which it is sawed or otherwise slotted to form parallel series of slots C, C', D, D intersecting with the bores B, B. The effect is .to form intermediate the slots C and D a series of flexible resilient hars E, one end of each being connected to the portion of the ring on one side ol the slots while the other end is connected to theV portionof the ringr on the opposite side .of said slots.

Thus, the ring may be compressed axially to lit the groove' lfor which it is designed' and will exert a predetermined axial pres sure against the side walls ol? said groove` It is of great importance that this axial pressure should be limited so as not to interlere with freedom for radial movement of the ring in the groove but it is equally iinportant to prevent collapsingr of the ringlr in the groove. Both conditions are fulfilled with my improved construction as the parall-el slots intersecting the radial hores facilitate the forming,y of spring bars of exact ly predetermined width and length. All of such spring bars are of the same length with the. exception of those in the opposite end portions of the ring iininediatelyadjacent 'to the transverse splits F whieh'lf' latter are preferably .made slightly shorter. This will compensate for the weakening in axial tension due to the split so that the end portions of the ring will exert the same axial p'essure as the intermediate portions there.n o

In the construction shown. in Figure l. the ring is transversely split diagonally. The construction shown in Figure 2 has the split structions are the same. n

"What I claim asin-v invention is:

1. A sealing ring provided with a plurality of-series of circumferentially extending slots in spaced planes, the adjacent ends of slots respectively lin the spaced planes being` cross connected to impart to the ring axial resilient flexibility'.

2. A sealingr 'ring provided with a plu-- 'rality ot' series ot circinnleren'tially extending slots in spaced planes, portions of the ring between said spaced planes heine; cut away to connect adjacent ends of slots in the respective planes to impart to the ring axial resilient flexibility.

3. A sealing` ring provided with a plu parallel to the axis, otherwise the cony ralityA of series of circumferentially extending slots in spaced planes, said ring being also provided with radial hores for connecting .the afliacent ends of slots in the respective planes to impart to the ring axialref...

silient flexibility.

Jl. A sealing,r ring provided with a plurality of series of circumferentially extendf` ing slots in spaced planes, said ring being also 'provided with radial bores for connecting the adjacent. ends of slots in the respective series and formingr between said slots a seriesof resiliently liexilile lsars', the bars in the portion of the ring on opposite sides of the split being slightly shorter than those 'of the intermediate portions.

In testimony whereof I aix my signature. 

